TY - JOUR
T1 - Adaptive eigen-projection beamforming algorithms for 1-D and 2-D antenna arrays
AU - Foutz, Jeffrey
AU - Spanias, Andreas
AU - Bellofiore, Salvatore
AU - Balanis, Constantine
N1 - Funding Information:
Manuscript received June 27, 2002; revised February 6, 2003. Portions of this work were supported by NSF under Grant ECS-9979403. The authors are with the Department of Electrical Engineering, Telecommunications Research Center, Arizona State University, Tempe, AZ 85287-7206 USA (e-mail: balanis@asu.edu). Digital Object Identifier 10.1109/LAWP.2003.811322
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003
Y1 - 2003
N2 - In this letter, we develop one-dimensional (1-D) and two-dimensional (2-D) adaptive algorithms that use gradient projections in select subspaces for use in antenna beamforming. The 1-D algorithm is essentially a significantly enhanced version of an eigen-projection algorithm that was previously developed for controls. The 2-D algorithm is new and is based on a stacked configuration of the enhanced 1-D algorithm. Both algorithms are applied to antenna beamforming in uniform linear and planar arrays. Simulation results show faster convergence as well as improved beam properties. In addition, results for a more realistic scenario with a BPSK signal and antenna coupling effects are also quite promising.
AB - In this letter, we develop one-dimensional (1-D) and two-dimensional (2-D) adaptive algorithms that use gradient projections in select subspaces for use in antenna beamforming. The 1-D algorithm is essentially a significantly enhanced version of an eigen-projection algorithm that was previously developed for controls. The 2-D algorithm is new and is based on a stacked configuration of the enhanced 1-D algorithm. Both algorithms are applied to antenna beamforming in uniform linear and planar arrays. Simulation results show faster convergence as well as improved beam properties. In addition, results for a more realistic scenario with a BPSK signal and antenna coupling effects are also quite promising.
KW - Adaptive beamforming
KW - SDMA
KW - Smart antennas
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U2 - 10.1109/LAWP.2003.811322
DO - 10.1109/LAWP.2003.811322
M3 - Article
AN - SCOPUS:3142719031
SN - 1536-1225
VL - 2
SP - 62
EP - 65
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
ER -